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ICE EFFECTS ON STREAMFLOW
The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.
LOCATION--Lat 42° 25'30", long 72° 01'30"
Worcester County, Hydrologic Unit 01080204, on left bank 700 ft
downstream from Barre Falls Reservoir, 1.6 mi upstream from Burnshirt
River, 4 mi east of Barre, and at mile 33.3.
DRAINAGE AREA--55.1 mi2.
PERIOD OF RECORD--Discharge: July 1946 to current year.
Water-quality records: Water years 1957, 1994.
REVISED RECORDS--WDR MA-RI-84-1: drainage area. WDR MA-RI-89-1: 1984–88.
GAGE--Data Collection Platform with satellite telemeter. Elevation of gage is 745 ft above National Geodetic Vertical Datum of 1929, from topographic map.
REMARKS--Prior to August 1955, slight regulation at low flow at times by Long Pond. Flow regulated by Barre Falls Reservoir since 1958. Diversion at times since 1955 from 6.5 mi2 upstream of station for municipal supply of Fitchburg.
COOPERATION BY--U.S. Army Corps of Engineers
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Value Feb 25